A mysterious visitor from another solar system could be an alien spacecraft, according to a leading Harvard astronomer.

A cosmic body from another star system has entered Earth and is the largest one ever seen. In the previous decade, two other ...

It may be a 20km wide comet or a cosmic snowball, but it does not pose a threat to Earth. Read more at straitstimes.com. Read ...

Astrophysicist Josep Trigo-Rodriguez of the Institute of Space Sciences near Barcelona, Spain, believes it is an interstellar ...

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NASA STEREO-A satellite's SECCHI/HI-2 camera captured this imagery of Comet C/2021 A1 (Leonard) Credit: Space.com | footage courtesy: NASA/NRL/B.Gallagher | edited by Steve Spaleta ...

Astronomers have accidentally found a planet with a debris trail like a comet that stretches up to 5.5 million miles in space. This strange exoplanet, located 140 light-years away from Earth in ...

Yet for these scientists eager to understand planetary interiors, this doomed world is offering its secrets via its grainy tail. The researchers will also look through TESS data for signs of other ...

Indeed, this planet is incredibly rare. Astronomers have discovered nearly 6,000 planets so far — but only three other similarly disintegrating ones. The other three also possess comet-like tails, but ...

A Disintegrating Rocky Planet with Prominent Comet-like Tails around a Bright Star. The Astrophysical Journal Letters, 2025; 984 (1): L3 DOI: 10.3847/2041-8213/adbf21 ...

Astronomers have spotted a small rocky planet that orbits perilously close to its host star disintegrating as its surface is vaporized by stellar heat, trailed by a comet-like tail of mineral dust ...

All three planets were spotted with similar comet-like tails. BD+05 4868 Ab has the longest tail and the deepest transits out of the four known disintegrating planets to date.